Improvement in combs



closed together'.

dilated tait@ aient @mira .EAYDN BROWN AND SOMERB'Y N. Norris, or WEST NEWBURY, MASSACHUSETTS,

ASSIGNORS TO C. NO YES AND COMPANY, OF SAME PLACE.

Lette/rs Patent No. 90,816, dated June 1, 1869.

IMPRQVEMENT IN coimas.v

The Schedule referred to in these Letters Patent and making part of the same.

To all persons to whom these presents may come:

- Be it known that we, HAYDN BROWN and SoM- ERBY N. NOYES, of West Newbury, in the county of Essex, and 'State of Massachusetts, have made anew and useful inventionrhaving reference to Combs; and do hereby declare the same to be fully described iu the following specication, and represented in the accompanying drawings, of which- Figure 1 is a side view,

Figure 2, a transverse section, and

Figure 3 a longitudinal section of what are termed twin combs, provided with our invention.

Figure 4 is au inner side view, and

Figure5, a transverse section of the metallic back or brace, to be hereinafter described.

Our invention speciallyrefers to such combs as have their lbodies made from horn, tortoise-shell, ivory, or what is termed hard rubber, and, although somewhat analogous to the invention of Picot, described in the United States patent, No. 59,645, dated November 13, A. D, 1866, yetthere are important differences between that and our said. invention.

The twin combs, pivoted together, require their me- .tallic backs to have guard-flanges to receive and close over the point-s of the teeth when lthe two combs are The comb of Picot, recessed at its edge to-receive the tenon or rib 'of the metallic brace, hadfsuch brace,

formed either with or without flanges, to lap on the sides of the comb, and fit closely thereto.

Now, although we adopt Picots method of xing the brace to the comb-body, thatis, by means of a tongue to entera mortise or groove formed in the comb-body, andto receive rivets going through both the body and the tongue, we have made the brace so as to answer the purpose of a guard to the teeth of the fellow-comb when the two combs are closed.

We have also formed in the tongue of the brace a single round hole, at its middle, and, instead of other` round holes for reception lof the rivets, we have made s lots in the tongue, and arranged longitudinally therein the rivets, except the middle one, going through snch slots, which are for the purpose of 'allowing the comb-body to leither contract or expand without hindrance from the rivets.

It is well known that-when a metallic back is livet-ed to a comb-body, by rivets going through round holes and filling them entirely, the body, when either contracting or expanding, is liable to become either split or broken at theY rivet-holes, or warped or twisted out of its normal shape. With our improvement the expansion or contraction of the body can take place without injury.

. In the drawings.-

The twin comb-bodies are shown at A and B, one being lapped on the Vother at their ends, and the two being connected by means of a centre-pin or rivet, a;

The metallic backs, orbraces, of such combs are exhibited at C C, each being formed as represented in gs. 4 and 5, the part b being the tongue, and the part c being the guard of each brace, they being so formed that when the tongue is inserted in the recessl `or groove of the comb-back, the guard shall projectover one side ofthe body, and with a sucient space, d, between the two to receive the points ofthe teeth ofthe fellow-body when the combs are closed together.

The single round hole for the central rivet e is shown at j; the yslots for the remaining rivets 1/ g being shown at h, h.

We make no claim t0 the invention of Picot. Nor do we claim a comb in whichzthe body and the teethguardare in one piece of horn or other piece of material, our invention having reference only to such combs as have their bodied provided with a separatebrace, fastened to it by rivets.

- We are aware of the United States patent, No. 55,349, granted to Joseph P. Noyes, June 5, 1866. Our invention differs materially from that described in the specification of such patent, as our Said invention requires the metallic back to each comb to be made with a tongue or tenon, and the body of the comb to be formed with a guide orrecess to receive each flange or tenon, which is to be held in place byy rivets; and, furthermore, the metallic back of each of our combs forms the recess for the reception of the teeth of the twin comb.

This is not the case with the metallic back of thecombs of the said J. P. Noyes, as they simply embrace the bodies of the combs, each body being bent so as to make a guard for thejteeth of the turn'- comb. 4

Our improved metallic back, and mode of applying it, enable the comb to -be made cheaper, lighter, and better'in most respects. l f

What we do claim as our invention is as follows:

WVe claim the new manufacture of comb -.back, madeas described, viz, with the fastening-flange, or tenon, and the tooth-guard, arranged together asset forth.

Also, the improved manufacture' or comb, in the back of the body of' which' a brace of metal, for strengthening the same, is fitted and fastened, and

so lapped down on one side of the body as to form, v

between the brace and the body,.a recess, or space for the reception of the teeth, or points of' the teeth, of another comb-body, when pivoted to and closed with the first body, in manner as hereinbefore mentioned. y

We also claim, when a metallic brace'is applied to au ivory, horn, shell, onhard-rubberv comb-body, as described, the formation of all the rivet-holes but one of such brace, as slots, arranged so as to allow of theexpansion and contraction of the body, lengthwise thereof, Without hindrance from the rivets going through such'slots, the same being to prevent breakage or warping of the body. l

HAYDN BROWN. SOMERBY N. NOYES.

Witnesses:

S. O; FOLLANSBEE, JOHN O. CARR. 

